Andrea Alù
Einstein Professor at the Photonics Initiative
Photonics Initiative, Advanced Science Research Center, City University of New York
In this talk, I discuss our recent research activity in nano-optics, polaritonics and electromagnetics, showing how suitably tailored meta-atomsand arrangements of them open exciting venues to realize new light phenomena and devices. I discuss venues to induce tunable diffraction-free wave propagation and topological phenomena based on lattice symmetries, to largely break Lorentz reciprocity and realize isolation without the need of magnetic bias based on broken time-reversal symmetry, and to induce enhanced light-matter interactions at exceptional points induced by parity-time symmetry. I also discuss how broken symmetries in space and space-time open the opportunity to induce topological order in metamaterials. In the talk, I will also discuss the impact of these concepts from basic science to practical technology.
https://liu.zoom.us/j/96802775902?pwd=SUxkc3dveVFFZUdLUWJnbmhyNy9KZz09
Meeting ID: 968 0277 5902
Passcode: 975440